https://devzone.nordicsemi.com/f/nordic-q-a/78455/disable-lfxo-x2-32-768khz-crystalHello Nordic Team, We had recently designed our custom nrf52840 board in which X2 or the 32.768 kHz Low-frequency crystal was not used. Can you please advise me on how to disable the LFXO crystal. I tried flashing the custom board with the developmenten-USTelligent Community 13Sun, 15 Aug 2021 23:05:19 GMThttps://devzone.nordicsemi.com/thread/324990?ContentTypeID=1Sun, 15 Aug 2021 23:05:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f520a74b-6452-4cb7-9939-e1f43973a2b7sethu<p>Thank you so much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/324768?ContentTypeID=1Fri, 13 Aug 2021 07:39:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:91d2303e-60bb-4729-92d8-5b7db791a7bfhelsing<p>Hello Sethu,</p> <p>Try adding the following config to prj.conf:</p> <p><code>CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y</code></p> <p></p> <p>For reference, here are the <a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.6.1/kconfig/choice_362.html#choice-options">other options for LFCLK</a>. Selecting one of these clock sources will automatically set the rest of the listed choices to &#39;=n&#39;.</p> <p></p> <p>Best regards,</p> <p>Håkon</p><div style="clear:both;"></div>